libata: pata_pdc2027x PLL input clock fix

[sfrench/cifs-2.6.git] / lib / devres.c

diff --git a/lib/devres.c b/lib/devres.c
index eb38849aa71702445e7e8e42744ad384fe512f48..b1d336ce7f3d0c34f694844c8bd7dfd0f1dc687d 100644 (file)
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -296,5 +296,31 @@ int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name)
        return rc;
 }
 EXPORT_SYMBOL(pcim_iomap_regions);
+
+/**
+ * pcim_iounmap_regions - Unmap and release PCI BARs
+ * @pdev: PCI device to map IO resources for
+ * @mask: Mask of BARs to unmap and release
+ *
+ * Unamp and release regions specified by @mask.
+ */
+void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask)
+{
+       void __iomem * const *iomap;
+       int i;
+
+       iomap = pcim_iomap_table(pdev);
+       if (!iomap)
+               return;
+
+       for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+               if (!(mask & (1 << i)))
+                       continue;
+
+               pcim_iounmap(pdev, iomap[i]);
+               pci_release_region(pdev, i);
+       }
+}
+EXPORT_SYMBOL(pcim_iounmap_regions);
 #endif
 #endif